| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_143dc572cd70c1908f236c623bea44b0 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C23G1-19
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C23C22-62 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C23G1-19
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C23C22-62 |
| filingDate |
1997-08-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1999-01-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f7d67b3cb5e2efd21f22b04a50a4963b
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_07258a1406f5e24acf4c0e9f3897aa49 |
| publicationDate |
1999-01-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-5858118-A |
| titleOfInvention |
Stainless steel alkali treatment |
| abstract |
The invention includes a method for cleaning and passivating a stainless steel surface comprising: 1) contacting the surface with 15-45 ml/liter of a composition consisting essentially of between about 15 and 50% alkaline component, between about 1 to 15% chelant, and between about 35 to 84% water; 2) maintaining contact to dislodge and remove residue from the surface; 3) continuing contact to complex free iron ions liberated from the surface with the chelant to form an oxide film on the surface; and 4) continuing contact to precipitate the complexed ions into the oxide film. The compositions may further include a surfactant selected from the group consisting of anionic, cationic, nonionic and zwitterionic surfactants to enhance cleaning performance. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-2348142-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6562145-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8734907-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2005234545-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8734586-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-11642473-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7850786-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2005034723-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6280527-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8728246-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/RU-2774886-C1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2004094236-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6770150-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2007062909-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2005074086-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6550487-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6341612-B1 |
| priorityDate |
1994-09-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |